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  1. STAR: A University of Hawaii Venture - Login

    During this time, STAR GPS will remain available for viewing information but students will not be permitted to add or drop classes until the new system comes back online on January 3, 2026.

  2. Star - Wikipedia

    A star is a luminous spheroid of plasma held together by self-gravity. [1] The nearest star to Earth is the Sun. Many other stars are visible to the naked eye at night; their immense distances …

  3. Star | Definition, Light, Names, & Facts | Britannica

    Oct 27, 2025 · A star is any massive self-luminous celestial body of gas that shines by radiation derived from its internal energy sources. Of the tens of billions of trillions of stars in the …

  4. Stars - NASA Science

    May 2, 2025 · A star’s gas provides its fuel, and its mass determines how rapidly it runs through its supply, with lower-mass stars burning longer, dimmer, and cooler than very massive stars.

  5. What Is a Star and How Does It Work? - ThoughtCo

    May 8, 2025 · How does a star work? How do they form, live, and eventually die? Learn more about these distant objects and their major importance in the universe.

  6. Stars—facts and information | National Geographic

    These large, swelling stars are known as red giants. But there are different ways a star’s life can end, and its fate depends on how massive the star is.

  7. What is a star? - Cool Cosmos

    A star is a huge sphere of very hot, glowing gas. Stars produce their own light and energy by a process called nuclear fusion. Fusion happens when lighter elements are forced to become …

  8. Star – Definition & Detailed Explanation - Sentinel Mission

    Oct 22, 2025 · Main Sequence: The protostar continues to collapse until nuclear fusion begins in its core, leading to the formation of a stable star. This stage is known as the main sequence, …

  9. What is a Star? - Universe Guide

    6 days ago · The simplest way to describe a star is that it is a great ball of fire, but it is more complicated than that. A star is a giant ball of hydrogen turning into helium through nuclear …

  10. Star - New World Encyclopedia

    The Pleiades, an open cluster of stars in the constellation of Taurus. NASA photo. A star is a massive, luminous ball of plasma that is held together by its own gravity. The nearest star to …